Answer: wikipedia

AnswerCrossword Clue
WIKIPEDIA

Expanding on-line reference

WIKIPEDIA

Reference from the Hawaiian and Greek for "quick education"

WIKIPEDIA

Reference site founded by Jimmy Wales

WIKIPEDIA
Online reference source
WIKIPEDIA
Web site founded by Jimmy Wales
WIKIPEDIAPopular reference work
WIKIPEDIAIts symbol is a globe composed of jigsaw puzzle pieces
WIKIPEDIAPopular online reference
WIKIPEDIAResource with content in 300+ languages
WIKIPEDIAMany teachers disallow it in footnotes